Malicious PDF — malware analysis report

Static analysis result for SHA-256 d503e07213140d18…

MALICIOUS

PDF

71.9 KB Created: 2021-01-30 16:19:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7189c68d9ab4f411b1995048c3a6b868 SHA-1: 9fa252f45dd60bc262e03122c0b1f0a34a735a7a SHA-256: d503e07213140d18b776b8c35dceb9676512e0e570d3f9a15c10ddbe496a5f55
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://leonvi.ru/aws?utm_term=aadhar+card+correction+form+filling+example PDF link annotation
    • http://eliyalte.com/43513386164w5y4j.pdfIn PDF document text
    • https://cdn.sqhk.co/pujapipiwat/7gKYhdK/17721049830.pdfIn PDF document text
    • https://cdn.sqhk.co/pategazikiw/ig1Mj7N/arcade_donkey_kong.pdfIn PDF document text
    • http://obmenkalnr.online/d_j_music_app_download_apk4mwt4.pdfIn PDF document text
    • http://sovetnik53.ru/87365732954xr7vz.pdfIn PDF document text
    • http://soul-felt.com/laxowogerfumj6.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuronufepu/gizSalw/nitirapemagomum.pdfIn PDF document text
    • http://copyrightmediahelp.com/rules_of_chess_downloadpjson.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bisute/thallus_organisation_in_bryophytes.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/cafeform_plus_pret.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatesawodiji/vancouver_reference_style_guide.pdfIn PDF document text
    • http://jakunivejejaxo.rf.gd/electronics_components_testing.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/76697217629.pdfIn PDF document text
    • http://nejovafejasujob.rf.gd/gujukibanudesekizewobog.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/sathuranga_vettai_2_full_movie_mp4.pdfIn PDF document text
    • http://xutulatovemi.epizy.com/teaching_creative_science_thinking.pdfIn PDF document text
    • http://fulatunufesaze.epizy.com/28139044203.pdfIn PDF document text
    • http://tulazupuvive.epizy.com/latest_chennai_city_map_free.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB75 5448 bytes
SHA-256: 324cb79d406e3d572bd2fb969a95a4287a3bda10c1e99fb503ab4a3fd4eaa32c
font_01_sfnt_off0000eddd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDDD 10760 bytes
SHA-256: d83a89f71e6f14546fc47ab294449532a79fac6cce10379109414fac3e611e02